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Bob has $2,500 invested in a bank that pays 6.0% annually. How long will it take for his funds to double? Hint: use NPER

User Mnicky
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1 Answer

5 votes

Answer:

It will take 11.90 years for the funds to double

Step-by-step explanation:

Here we want to calculate the time it will take for the invested amount to be doubled.

Mathematically;

t = ln(future value/ Present value)/ln(1 + rate)

From the question;

Future value = 2 * invested amount = 2 * 2500 = $5,000

Present value = $2,500

Rate = 6% = 6/100 = 0.06

Substituting these values, we have

t = ln(5000/2000)/ln (1 + 0.06)

t = ln2/ln1.06

t = 11.90 years

User Neel Patel
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